here's another way to go....
this might sound silly, but....
I forget the purpose of your car purchase.
We all know how much money you have to spend...but
Do you need 4 doors?
Do you want to drive something that not everyone and his mother are driving?
Do you really want to DRIVE, as in performance is the key here?
Are you a poser that wants everybody to look at you when you drive by?
Is the whole FWD/RWD/AWD/4WD that important, or does it again come down to handling?
I know that the original post stated the answers to some of these questions - but the post-test-drive posts seemed to be a little confused as to the primary function of this vehicle. So my suggestion (and I don't think I've seen it yet) is.....
buy two!
Do you love to drive? As in love to hit the onramp just right or find your favorite bit of twisty road or challenge yourself to see if you can go just a little bit faster? Well, the highway ain't the best place for any of that. The track is. So's the autocross course.
So ya got all this money to spend and your car's important? Buy yourself a Porsche, join the PCA, get out there with an instructor and learn to drive a fast car fast. Learn how to work on it a bit to save yourself some money - but more importantly, to have a respect for the car that you just can't get by dropping it off at the dealer and picking it up the next day. Learn to maintain your car, not wait 'til it breaks and repair it.
I've had three. My first, an '88 911 Carrera Targa, was my dream car of dream cars since I was a little kid. I bought it in '96 for about 25K. Drove it for 4 years and sold it for 22K - how's that for an investment? Did autocross, track, rally, concours, the whole shebang. Awesome experience. Somewhere along the way, I became worried about doing track events with it, so I bought a '73 914 for 2K with the idea of fixing it up for track and autocross. I was well on the way when I moved and lost the parking room for it, so I sold it for about 2K (putting about 3K of work into it along the way...). Different kind of fun than the 911. More fun in some ways, actually - the mid engine thing is just awesome on twisties. Then, I needed a little more creature comforts as my commute became longer, so I bought an '89 944 S2 with real live air conditioning! You drive to the track in total comfort, switch to your track tire/wheel combo, drive the heck out of it for a weekend, and then put the cruise control and AC and 6 disc changer on for the leisurely ride home. If you were brave enough to stand on the loud pedal in 2nd gear to redline, you either smiled or were dead - there just weren't any other options. The 944 Turbo is supposed to be twice the car as the S2. I can't imagine what that would be like.
So, you've got all this money. If you really, really want to learn about performance, then do it somewhere safe. (I'm sure other car clubs offer all the same stuff as the PCA - I only know of what I speak. Write. Whatever.) Buy a car to get you to work. Buy a car to indulge your driving fantasy. You'll spend the same money, but you'll be buying a hobby, too. Look around - again, I only know about P-cars - but you can find a Porsche for pretty much ANY amount of money.
Now, let's answer those questions with some cars:
4 doors? Hmm. A used Cayenne? Nah, here, you'd probably need to go BMW or Audi.
Unique? Take your pick. How 'bout a 928? A 968 cabriolet? A heavily modified 914 with a Corvette engine (not my cup of tea, but you can search Porschev and see some of the FrankenPorsches out there).
Performance drives? Any 911 Turbo - but you'd better get some lessons, first. A Boxster S - trust me, the car will be better than you are for quite some time.
Want people to look at you? Slant nose 911. Anything with that huge wing out back. A 914-6. A 356. A 356 speedster. A 911 speedster.
No Porsche has ever had FWD; lots have 4WD/AWD. In fact, my 944S2 with snow tires was a pretty darn good winter car - unless the snow got deeper than about 6 inches....in which case, it's time to call in one of your many SUV-drivin' buddies.....
So, anyway, if you want new, than you can ignore all of this. But if you're buying a great car for the sheer driving experience, well then...
there really is no substitute.
Go drive something great! Isn't that the whole point?
MFK